Ruler King
On-screen pixel ruler, element measurer, alignment guides, and screenshot tool for developers and designers
On-screen pixel ruler, element measurer, alignment guides, and screenshot tool for developers and designers. It runs quietly in your browser as a lightweight extension — no separate app to install or manage. In practice that means transparent on-screen ruler for pixel-precise measurement, and element measurer showing width, height, padding, and margins.
No published price
This product has no price list yet. Email [email protected] and we'll confirm licensing and cost for how you plan to use it.
- Transparent on-screen ruler for pixel-precise measurement
- Element measurer showing width, height, padding, and margins
- Distance tool for measuring gaps between elements
- Right-click context menu integration
- Screenshot capture
- Install Ruler King from the Chrome Web Store and pin it to your toolbar.
- Take advantage of transparent on-screen ruler for pixel-precise measurement.
- Take advantage of element measurer showing width, height, padding, and margins.
- Take advantage of distance tool for measuring gaps between elements.
- Customize the extension's settings to match how you browse.
How much does Ruler King cost?
Visit the live site for current plans and pricing.
What do I need to run this?
Any Chromium-based browser (Chrome, Edge, Brave) that supports the Chrome Web Store.
How do I get help if something goes wrong?
Email [email protected] and we'll get back to you.
Can I use this for commercial or business purposes?
Yes. Email [email protected] for commercial terms.
Other tools in Chrome Extensions and nearby categories.
Use of Ruler King is covered by our terms of use, and by the Ruler King privacy policy, which describes what this product specifically stores and sends. The product itself is operated at chromewebstore.google.com/detail/ruler-king/fhfgialepbcenggikfpcomhedffognad, where any product-specific terms are published.
Didn't find your answer above? The Ruler King support page covers what to include in a report, or email [email protected] directly.